package demo1;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet("/Repost.do")
public class Repost extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        resp.setContentType("text/html;charset=UTF-8");
        String username = req.getParameter("username");
        //servlet与前端跳转
        if (username.isEmpty() || username.length() == 0) {
            resp.sendRedirect("/error.html");
        } else {
            resp.sendRedirect("/success.html");
        }
    }
}